function Person(){} var friend=new Person(); console.log(Person.prototype);
Person.prototype={
constructor:Person, name:'ytf', age:'20', job:'student', sayName:function(){ console.log(this.name);
}
} console.log(Person.prototype); console.log(friend.sayName());
重寫原型對象之后，為什么最初的原型對象還會存在
小怪獸愛吃肉
2018-09-08 10:39:13